Bayer Corporation

Miles Inc.

Lonnie C Sackman

Lawrence J Daher

Robbie L Hayward

The invention provides a coated tablet, a coating composition and a method of film coating. The coating is particularly useful for pharmaceutical tablets. The coating composition is composed of an aqueous solution of film forming inorganic salts which may be used with conventional coating techniques. Such film forming salts include sodium polyphosphate and sodium sulfate. This coating may be used on uncoated tablet cores, as a final coating or used as a subcoating for other coatings, such as enteric coatings. Use of this coating composition provides savings in cost of materials and in manufacturing efficiency over previous polymeric cellulose coatings.

Salt coated tablet

A method for producing a tablet shine coating by either (a) alternately spray flooding the surfaces of tablets with a clear aqueous coating solution which is devoid of plasticizers, such as a solution consisting essentially of about 6% hydroxypropyl methylcellulose, about 0.06% sodium hexametaphosphate and about 0.006% lecithin by weight in water, and flash drying the tablets, or (b) alternately spray flooding the surfaces of coated tablets with water and flash drying the tablets.

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Elkhart, IN, United States of America

Lonnie C Sackman